They could not afford to spoil those maps by careless colouring.若是上色的时候不小心弄坏了那些地图，他们可承担不起。In some places maps are scarce, and are often crudely produced.有些地方很少有地图，而且通常绘制得都很粗糙。It can translate data from maps or remote sen...
I must admit that maps obsess me...我得承认我对地图十分着迷。The isoseismal maps are valuable complements to the instrumental records.等震线图是仪器记录有价值的补充资料.They differ somewhat from bathymetric charts which are virtually topographic maps...